Referred to the revised content of the examination syllabus in 2017, this paper studied three sets of college entrance examination papers by adding up marks based on the chemical core literacy. The results showed that the examination papers basically covered examine of chemical core literacy; most of the questions achieved the synthesized testing; "the scientific spirit and the social responsibility" only occupied a small proportion. What's more, the author offered some suggestions for chemistry test of our country, such as "the examination paper should be carried out the requirement of core literacy" "the examination of the five chemical core literacy should be kept a rational proportion".

Taking Chemistry 1 published by People's Education Press for example, according to the function of table, this paper divided the tables in the textbook into 4 types:experimental record table, summary table, exercise table, data card table, and also analyzed the presentation and cognitive function of tables and realization of process and method goal in textbook. This paper surveyed the use of tables in textbooks by teachers and students. According to the cognitive function and the use frequency of various tables by teachers and students, this paper put forward some suggestions for the arrangement and use of some tables in textbooks.

This paper analyzed the content organization and presentation of "the existence of particle" in New Science textbooks of Japan from the following four aspects:"main idea", "core content", "important questions" and "situational activities", and found that New Science textbooks had the features such as the content organization and presentation with a focus on the structure of content and student cognitive development stage, scientific inquiry activities to lead and "particle model" dominant.

Taking "the evolution of atomic structure model" as an example, this paper used chemical history as situation to design questions, and students analyzed evidence, constructed and evaluated model, during which they realized the relationship between experimental evidences and modeling construction and understood the important role of model in the development of theory and its character of evaluation. This instructional design had significant effect on students' understanding of atomic models.

Chemical history can be used as an important resource for chemistry teaching design. This paper designed the process of chemists conducting scientific research and solving scientific problems as students' problems for classroom teaching, which needed to go through the following steps:investigation of historical event, analysis of students' level, problem transformation. Taking the law of conservation of mass as an example, the framework and implementation of chemistry teaching design based on "historical replay" was discussed.

This paper introduced the research ideas and teaching activities of ionic reaction lesson which intended to develop students' chemistry discipline core literacy. Focusing on ionic reaction concept, ionic equation writing and ionic reaction conditions, this study explored the relationship between teaching contents and chemistry discipline core literacy; established true and valuable situation; designed high level experimental inquiry activities; emphasized the process of microscopic analysis, and combined the learning of ionic reaction concept and the idea of understanding the reactions in aqueous solutions from the perspective of microscopic ion. This study was conducted to develop students' chemistry discipline core literacy and help students form an overall understanding of the ionic reaction concept.

This paper presented the teaching practice of "representation of solution composition" highlighting the importance of learning transfer to knowledge construction, and analyzed the strategies of promoting learning transfer from three aspects:design advance organizer, reorganize teaching contents and relate different types of knowledge.

In order to explore effective teaching to promote students' epistemic perspective behavior, this paper constructed analysis framework composed of teaching links, teaching sub-links and specific teaching behavior, encoded the selected the representative lessons based on analysis framework. This paper analyzed the excellent conventional lessons and epistemic perspective lessons, obtained effective teaching behavior to promote students to build epistemic perspective.

Based on the guidance of Science Writing Heuristic (SWH) strategy framework and characteristics of chemistry experiment teaching, this paper constructed a teaching model named "five-stage teaching" whose teaching process was divided into task preparation, experiment participation, cooperative discussion, reflection and writing. This teaching model linked argumentation activities to experiment activities in order to promote students' experimental arguments and reflection through writing, which would further reach the understanding of science and experimental principles. Combined with the case "alkaline zinc manganese battery", this paper analyzed the teaching implementation of SWH in-depth to enlighten teachers to carry out SWH teaching.

Based on the analysis of problems and deficiencies of conventional experiments, this paper improved experiments with reverse thinking. Through the reversal of the order of adding reagent, an inverted operation of an experimental instrument or environment,reverse analysis of conclusion, some experiments were improved such as the preparation of ferrous hydroxide precipitation, sodium bicarbonate solution was titrated with hydrochloric acid, LED was used to judge the anode and cathode of primary battery, reversed experimental environment to improve the flame reaction, and etc.

This paper concluded the existing problems in the substitution reaction of methane and chlorine, and presented suggestions to improve the experiment device. In the paper, orthogonal experimental design with four indexes comprehensive scoring method was used to do a systematic exploration of the temperature, light condition, gas proportion, and light distance in the reaction. Then this paper optimized the experimental condition so as to find out the best experimental condition.